Every Marvin Window and Door is made to order, one at a time. An unparalleled value in the market, Marvin offers craftsman-quality construction, energy-efficient technology and the industry’s most extensive selection of shapes, styles, sizes and options.

Integrity's windows and doors are made with Ultrex® Fiberglass, an innovative material created 20 years ago. For two decades now, Ultrex has outlasted and outperformed the competition on virtually every measurable scale.

Infinity Ultrex fiberglass replacement windows and patio doors are designed to replicate the look of traditional wood windows while providing modern features and low-maintenance, yet long-lasting performance.

When you partner with Marvin on your next project—whether that be a remodel, replacement, new construction, or even the creation of sustainable building—you can be sure you will be getting the guidance and expertise necessary to make any design complete. Tell us a few things about your project, and Marvin will work with local dealers to bring your ideas to life.

We gathered some helpful resources to help answer your immediate questions and provide solutions. From manuals to maintenance, and installation instructions to energy data, there’s a wealth of information right here.

Need Some Extra Help?

We gathered some helpful resources to help answer your immediate questions and provide solutions. From manuals to maintenance, and installation instructions to energy data, there’s a wealth of information right here.

Marvin’s sliding patio and sliding French doors now have an innovative option with the addition of the Low Profile Sill. Just ¾” off the base flooring, the Low Profile Sill provides an easy transition between indoor and outdoor spaces. Those looking for a clean look will appreciate the Low Profile Sill’s flush profile.

The Low Profile Sill offers exceptional performance and beauty. Certified as DP40 on most sliding doors, the Low Profile Sill is strong and durable with the performance of a higher sill.

Its low profile is also ADA-compliant, adding ease to home living for those disabled or aging in place.

This sill is made from Ultrex®, a durable pultruded fiberglass and has an interior oak liner. It can be ordered with all current product and design options on Marvin sliding French and sliding patio doors.

The Low Profile Sill is a design exclusive to Marvin Windows and Doors. Now homeowners don’t have to choose between performance and looks—the Low Profile Sill shows only the beauty of the door, while remaining strong and secure. And with today’s aging population, the Low Profile Sill is an important safety consideration, offering a flush threshold. For those using wheelchairs or walkers, the Low Profile Sill is an ADA-compliant door, making home living a little easier.

John Simpson of Marvin Windows and Doors says, “The Low Profile Sill’s clean, flush look is perfect for today’s indoor-outdoor living trend. In the past, taller thresholds were necessary for top performance, but Marvin’s inventive engineering has made the Low Profile Sill look good and perform just as well as a traditional sill.”

For further information about the Low Profile Sill, please call (888) 537-8266 or visit www.marvin.com.